1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

PC not powering up

Discussion in 'General Hardware' started by andyspeak, Sep 8, 2013.

  1. andyspeak New Member

    Joined:
    Sep 8, 2013
    Messages:
    4 (0.01/day)
    Thanks Received:
    0
    Hey
    Just wondered if anyone can help me.
    When I press the powerup button on my PC nothing happens.
    There is a faint high pitched noise from the motherboard area which changes in pitch when i press the button but nothing happens. There is a green light on the motherboard when plugged in. Could this be time for a new power unit? the PC is two years old and has a corsair CX600 power unit.
    Hoping its not a motherboard issue.
    Andy
     
  2. Fourstaff

    Fourstaff Moderator Staff Member

    Joined:
    Nov 29, 2009
    Messages:
    9,199 (5.12/day)
    Thanks Received:
    1,982
    Location:
    Home
    Post all other specs please. Also, consider checking whether all the cables are properly fitted. I don't know about the high pitched noise, it can be anything from coil whine (which should be from the PSU not the motherboard) to internal speakers trying to give beep codes (highly unlikely). You might want to try to isolate it by booting off the motherboard instead of through the button on case. Short the circuit if you don't have the buttons, it should be the two wires which leads to the front of the case.
     
  3. andyspeak New Member

    Joined:
    Sep 8, 2013
    Messages:
    4 (0.01/day)
    Thanks Received:
    0
    Can you point me to a detailed description of how to short it please?
     
  4. Jetster

    Jetster

    Joined:
    Jan 17, 2010
    Messages:
    5,154 (2.95/day)
    Thanks Received:
    2,112
    Location:
    Oregon
    List all the specs
     
  5. andyspeak New Member

    Joined:
    Sep 8, 2013
    Messages:
    4 (0.01/day)
    Thanks Received:
    0
    Chillblast Elite Budget PC
    Antec One Hundred Gaming Case
    AMD Llano A8-3850 Processor 2.9GHz
    Arctic Cooling Freezer 13 CPU Cooler
    Arctic Silver 5 Thermal Paste
    Gigabyte GA-A75M-UD2H Motherboard
    8GB Corsair PC3-12800 1600MHz DDR3 Memory (2 x 4GB sticks)
    Integrated AMD Radeon Graphics
    1000GB 7200RPM Hard Disk
    Sony 24x DVD-RW Drive
    Thermaltake SP-530PCWEU PSU
    Onboard High Definition Audio
    Windows 7 Home Premium 64 bit
     
  6. Dent1

    Joined:
    May 18, 2010
    Messages:
    3,158 (1.94/day)
    Thanks Received:
    915
    Could be anything, faulty CPU, Motherboard, RAM stick, GPU, PSU, heat sink not secured correctly a combination of all. You need to swap the components trial and error to solve this issue.

    I'd start with the RAM, install 1x stick one by one. Then hunt around for old components to slowly test.
     
  7. Jetster

    Jetster

    Joined:
    Jan 17, 2010
    Messages:
    5,154 (2.95/day)
    Thanks Received:
    2,112
    Location:
    Oregon
    Power supply?

    So it was working fine then this started without any changes being made first?
     
  8. da20valve

    Joined:
    Mar 17, 2011
    Messages:
    127 (0.10/day)
    Thanks Received:
    18
    Disregard the CPU, take ya ram out (all of it) and put one stick into the first white slot (second slot from the left) and boot it, if it beeps take that stick out and put the other stick into the same slot and try it again, see what happens. IF that doesn't work its your video card (but I noticed you didn't mention one) is this the case or did you just forget to list it ?, If you do have a video card REMOVE THIS FIRST BEFORE YOU DO ANYTHING, plug your monitor into the onboard header (this will run up and down NOT left to right like it usually does) and try to boot the pc, if that doesn't work do what I have said above about the ram.
     
  9. shovenose

    shovenose

    Joined:
    Jan 11, 2013
    Messages:
    797 (1.21/day)
    Thanks Received:
    132
    Corsair CX600 uses lousy caps - short green pin on big ATX connector to a black one that's next to it - the PSU should turn on.
    If it doesn't get it replaced or buy a new one.
     
  10. andyspeak New Member

    Joined:
    Sep 8, 2013
    Messages:
    4 (0.01/day)
    Thanks Received:
    0
    yeah i shorted the green and black and nothing happened so ive just ordered a new PSU.
    It gave absolutely no signs it was about to cut out....
     
  11. da20valve

    Joined:
    Mar 17, 2011
    Messages:
    127 (0.10/day)
    Thanks Received:
    18
    If its making a beep, its not the PSU, (unless its also faulty), its something else, I would pull the psu out and try it in another machine rather then try another psu in yours, that way you know for sure if its the psu or not. Doing it the other way there may be something else wrong and you have just wasted $100.
     

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page